HD6417606 RENESAS [Renesas Technology Corp], HD6417606 Datasheet - Page 302

• Manufacturer Part Number: HD6417606
• Manufacturer: RENESAS [Renesas Technology Corp]

Section 12 Serial Communication Interface with FIFO (SCIF)
Transmit/Receive Formats: Table 12.10 lists the eight communication formats that can be
selected in asynchronous mode. The format is selected by settings in the serial mode register
(SCSMR).
Table 12.10 Serial Communication Formats (Asynchronous Mode)
[Legend]
START: Start bit
STOP: Stop bit
P:
Clock: An internal clock generated by the on-chip baud rate generator or an external clock input
from the SCK pin can be selected as the SCIF transmit/receive clock. The clock source is selected
by the C/A bit in the serial mode register (SCSMR) and bits CKE1 and CKE0 in the serial control
register (SCSCR) (table 12.9).
When an external clock is input at the SCK pin, it must have a frequency equal to 16 times the
desired bit rate.
When the SCIF operates on an internal clock, it can output a clock signal at the SCK pin. The
frequency of this output clock is equal to 16 times the desired bit rate.
Rev. 4.00 Sep. 13, 2007 Page 276 of 502
REJ09B0239-0400
CHR PE STOP
0
0
0
0
1
1
1
1
SCSMR Bits
Parity bit
0
0
1
1
0
0
1
1
0
0
0
1
0
1
1
1
START
START
START
START
START
START
START
START
1
2
Serial Transmit/Receive Format and Frame Length
3
4
7-bit data
7-bit data
7-bit data
7-bit data
8-bit data
8-bit data
8-bit data
8-bit data
5
6
7
8
STOP
STOP STOP
P
P
9
STOP
STOP STOP
STOP
STOP STOP
10
P
P
STOP
STOP STOP
11
12